48 



MANAGEMENT AND BREEDING OF HORSES 



Fig. 32. — Sound Hock, 

 Showing Tendons 



pare one hip with the other from the rear. Note the 



haunches at the side of the tail for similar distortion. 



Sore tail. — The black skin of the 

 under side of the tail and nearby- 

 parts is often the seat of cancerous 

 or pigment tumors in white or gray- 

 horses. Note the tail to see that 

 it is not artificial. 



Thoroughpin. — This consists of 

 an enlargement in the "hollows" 

 between the tendon and the upper 

 part of the hock. It may be easily 

 detected, as it may be pushed from 

 side to side. 



Spavin. — There are four kinds 

 of spavin — bone, bog, occult and 

 blood. Bone spavin consists of a 

 bony growth on the inside and 



front of the hind leg just below the hock. Bog 



spavin occurs in the natural depression on the inner 



and front part of the hock, and 



consists of a soft swelling. Occult 



spavin is locatedin the hock joint. 



The term "blood spavin" is some- 

 times applied to the enlargement 



of the vein that passes across the 



front of the hock. 



Jard. — This is a bony growth 



appearing on the outer side of the 



hock joint. 



Curb. — This occurs on the back 



of the cannon between the hock 



and the fetlock, usually just below 



the hock. 



Stringhalt. — This consists of a 

 marked jerking of the hind leg as the horse travels, 

 noticeable when the animal starts. 



Fig. 33. — Cocked Ankle 



